Re: singleton design pattern
Re: singleton design pattern
- Subject: Re: singleton design pattern
- From: Greg Guerin <email@hidden>
- Date: Wed, 19 May 2010 15:33:22 -0700
Abhinay Kartik Reddyreddy wrote:
everytime you ask for a uniqueInstance it looks like it retrieves a
new instance not the existing instance... since you set the
uniqueinstance to nil inside that function, your function will
discard the previous instance if any and then create a new
instance. Singleton is supposed to return existing instance if any
and if none create one.
Also i guess the scope of your static is local.
correct me if i am wrong.
Your assertion that a new instance is created every time is wrong.
It would be right if the storage class were anything but static. But
it is static. So a new instance is created only once, barring any
thread-unsafe artifacts.
By the way, this is true for plain ordinary standard C. Objective-C
does not change it.
-- GG
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